html, body, .stage, .ring, .img {
  width:100%;
  height: 100%;
  transform-style: preserve-3d;
  user-select:none;
}

html, body, .stage {
  overflow:hidden;
  background:#000;
  
}

div, svg {
  position: absolute;
}

.container {
  perspective: 2000px;
  width: 300px;
  height: 400px;  
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
}